Will there be a cyber-war?
Tensions with Russia prompt fear of cyber attacks
Britain's National Cyber Security Centre (NCSC) is on high alert for possibility of Russian activity, according to a BBC report.
"Russia is our most capable hostile adversary in cyber-space, so dealing with their attacks is a major priority for the National Cyber Security Centre and our US allies," said NCSC chief Ciaran Martin in a statement.
This NCSC statement appears to be contradictory, as despite the current tension between Russia and the West, cyber-war remains hypothetical.
According to the report, there has not been any sign of a significant cyber-attack or change of behaviour from Russia. However, frequent Russian activity has been seen for almost 20 years.
Russian espionage - the theft of information - dates back at least to the late 1990s. In the past few years, officials in the UK and US have claimed that they have seen Russia pre-positioning in networks that are part of the critical infrastructure in a way that could be used for destructive acts of sabotage, for instance taking down parts of the electricity grid.
While there has been relatively little sign of this in the US or UK, Russia is accused of launching destructive attacks against Ukraine, which spilled over into companies that did business there.